Wait a minute, do they transcend space-time or just time?
If so, that actually matters.
https://vsbattles.fandom.com/wiki/Speed
Our Speed Page for Note 4 implies that if you can move in a timeless void, you get Infinite Speed.
So if they transcend Time, then logically they should be a timeless void, so that is infinite.
If they transcend Space-Time, then logically they should either be a higher spatio-temporal dimension or beyond dimensionality, so that is Immeasurable or Irrelevant.
Based on this, I think 'Possibly Infinite' could be fine assuming we have just this to go on, or perhaps "Likely Higher."
I am personally uncomfortable just accepting it because "well I transcend time."
Okay? Jiren said the same thing, yet he has no other qualities of Infinite Speed.
I agree with Shadow, just chalk it up to flowery language. Even me saying "Possibly" is sort of loose.
I am technically fine with it, but I have just so many questions on the consequences that even me who has a tendecy to use Occams Razor cant ignore this.